Forget twisters. These storm chasers are after a sneakier hazard: hail. A team of about 70 researchers, armed with high-tech sensors and specially outfitted vehicles, set out across the nation this ...

Hail is more costly and destructive than tornadoes, and it's set to finally get more scientific attention this spring, with the world's largest field campaign ever devoted to studying the phenomena.

During severe thunderstorms, rising air shoots icy pellets the size of Dippin’ Dots ice cream into the bitter cold of upper atmospheric layers. There, supercooled water freezes onto the small ...